tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git gpio-driver-h head: 915c04be5ba60b3e285f361a38c2c85f10d934d9 commit: 316724ca535fdd1494c7e284166a3297c6511ad4 [15/25] gpio: sch311x: Implement .get_direction() config: i386-randconfig-s1-201825 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout 316724ca535fdd1494c7e284166a3297c6511ad4 # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): drivers//gpio/gpio-sch311x.c: In function 'sch311x_gpio_probe': >> drivers//gpio/gpio-sch311x.c:268:31: error: 'sch311x_get_direction' undeclared (first use in this function) block->chip.get_direction = sch311x_get_direction; ^~~~~~~~~~~~~~~~~~~~~ drivers//gpio/gpio-sch311x.c:268:31: note: each undeclared identifier is reported only once for each function it appears in At top level: drivers//gpio/gpio-sch311x.c:224:12: warning: 'sch311x_gpio_get_direction' defined but not used [-Wunused-function] static int sch311x_gpio_get_direction(struct gpio_chip *chip, unsigned offset) ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/sch311x_get_direction +268 drivers//gpio/gpio-sch311x.c 235 236 static int sch311x_gpio_probe(struct platform_device *pdev) 237 { 238 struct sch311x_pdev_data *pdata = dev_get_platdata(&pdev->dev); 239 struct sch311x_gpio_priv *priv; 240 struct sch311x_gpio_block *block; 241 int err, i; 242 243 /* we can register all GPIO data registers at once */ 244 if (!devm_request_region(&pdev->dev, pdata->runtime_reg + GP1, 6, 245 DRV_NAME)) { 246 dev_err(&pdev->dev, "Failed to request region 0x%04x-0x%04x.\n", 247 pdata->runtime_reg + GP1, pdata->runtime_reg + GP1 + 5); 248 return -EBUSY; 249 } 250 251 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 252 if (!priv) 253 return -ENOMEM; 254 255 platform_set_drvdata(pdev, priv); 256 257 for (i = 0; i < ARRAY_SIZE(priv->blocks); i++) { 258 block = &priv->blocks[i]; 259 260 spin_lock_init(&block->lock); 261 262 block->chip.label = DRV_NAME; 263 block->chip.owner = THIS_MODULE; 264 block->chip.request = sch311x_gpio_request; 265 block->chip.free = sch311x_gpio_free; 266 block->chip.direction_input = sch311x_gpio_direction_in; 267 block->chip.direction_output = sch311x_gpio_direction_out; > 268 block->chip.get_direction = sch311x_get_direction; 269 block->chip.get = sch311x_gpio_get; 270 block->chip.set = sch311x_gpio_set; 271 block->chip.ngpio = 8; 272 block->chip.parent = &pdev->dev; 273 block->chip.base = sch311x_gpio_blocks[i].base; 274 block->config_regs = sch311x_gpio_blocks[i].config_regs; 275 block->data_reg = sch311x_gpio_blocks[i].data_reg; 276 block->runtime_reg = pdata->runtime_reg; 277 278 err = gpiochip_add_data(&block->chip, block); 279 if (err < 0) { 280 dev_err(&pdev->dev, 281 "Could not register gpiochip, %d\n", err); 282 goto exit_err; 283 } 284 dev_info(&pdev->dev, 285 "SMSC SCH311x GPIO block %d registered.\n", i); 286 } 287 288 return 0; 289 290 exit_err: 291 /* release already registered chips */ 292 for (--i; i >= 0; i--) 293 gpiochip_remove(&priv->blocks[i].chip); 294 return err; 295 } 296 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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